Earlier today, a MacRumors reader notified us that the white iPhone 4 is ever so slightly larger than the black iPhone 4. It's a small difference, but enough that the white iPhone 4 wouldn't fit in his Incase slider case:

Quote:

Just picked up the white iPhone 4 and realized it doesn't fit into my Incase slider case. It appears that Apple has increased the size of the plastic that borders the glass on both sides by about 1mm.

A colleague of mine just picked up a 16 GB iPhone 4 in white. I was a bit surprised when I picked it up off his desk (I had my black 32 GB in my other hand at the same time) – it immediately felt thicker.

Cash offers some comparison photos between the white and black iPhone 4 showing the slight difference. The small different may be enough to affect tight fitting slider cases as evidenced by our reader's experience.

That actually isn't surprising. I've noticed that all of the aftermarket "OEM" white based replacement backplates (any using the white housing for colored glass...yellow, all the whites, green) are always just slightly thicker and can prevent tighter fitting cases from going on the phone. I always just chalked it up to aftermarket parts not being as exact as genuine Apple parts, but now it seems like it's actually a legitimate difference.

The white is definitely a little bit thicker than the black. I managed to get it in my Incase Slider (snuggly) that I used with my black, but it is next to impossible to get it out. This post explains why...